DNA separation by silica adsorption is a method of DNA separation that is based on DNA molecules binding to silica surfaces in the presence of certain salts and under certain pH conditions.[1][2]
^Karp, Angela; Isaac, Peter G.; Ingram, David S. (1998). "Isolation of Nucleic Acids Using Silica-Gel Based Membranes: Methods Based on the Use of QIAamp Spin Columns". Molecular Tools for Screening Biodiversity. pp. 59–63. doi:10.1007/978-94-009-0019-6_14. ISBN978-94-010-6496-5.